DTC U0404-86: Invalid Data Received From Gear Shift Control Module "A" - Signal invalid: Action
WARNING: This page is about a different variant/trim than selected.
- Check transmission control switch for related DTCs and refer to relevant DTC index
- Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test
- Refer to the appropriate system wiring diagram and check transmission control switch power and ground circuits for open circuit
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest